1.Digital image formation technology 2.Portable Ultrasound Diagnostic System 3.Silica gel keyboard 4.Portable and convenient Portable Ultrasound Diagnostic System DW330If you are interested ... ≤5% ,axial≤5%Gray scale: 256Magnification: ×0.8, ×1.0, ×1.2, × 1.5,×1 .8, ×2.0Local zoomDynamic scope: 0~100dB, visible & adjustableElectronical ...